KENNEDY SPACE CENTER, FLA. - A Columbia Crew Memorial Service is held at the Shuttle Landing Facility for KSC employees and invited guests. Florida Senator Bill Nelson, seated in the center (gold tie), flew on Columbia in 1986 as a payload specialist on mission STS 61-C. Beside him (left) is Congressman Dave Weldon. The Columbia and her crew of seven were lost on Feb. 1, 2003, over East Texas as they returned to Earth after a 16-day research mission. Taking part in the service were NASA Administrator Sean O?Keefe, former KSC Director Robert Crippen, astronaut Jim Halsell, several employees, area clergymen, and members of Patrick Air Force Base. The service concluded with a ?Missing Man Formation Fly Over? by NASA T-38 jet aircraft.